// css样式重置
html, body, div, span, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
abbr, address, cite, code,
del, dfn, em, img, ins, kbd, q, samp,
small, strong, sub, sup, var,
b, i,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, figcaption, figure,
footer, header, hgroup, menu, nav, section, summary,
time, mark, audio, video {
  margin:0;
  padding:0;
  border:0;
  outline:0;
  font-size:16px;
  color: #555;
  vertical-align:baseline;
  background:transparent;
  box-sizing:border-box;
}

body {
  line-height: 1.2em;
  font-family: "Microsoft YaHei UI", "Avenir";
}

ul, li {
  list-style: none;
}

a {
  text-decoration: none;
}

hr {
  display: block;
  height: 1px;
  border: none;
  border-top: 1px solid #ccc;
  margin: 1em 0;
  padding: 0;
}

input, select {
  vertical-align: middle;
}